Lock for window sashes, etc.



july a. 1,500,562 i H. HOFF LOCK FOR WINDOW SASHES, ETC

Filed July 31, 1922 Patented July 8, 1924.

HERMAN HOFF, OF BUFFALO, NEW YORK.

Partnr l LOCK FOR WINDOW SASHES, ETC.

. Application led July 31, 1922. Serial No. 578,563.

i" To all whom, t may concern.'

` Be it known that I, HERMAN' Horn, ak

citizen of the United States, residing in Buifalo, in the county of Erieand State of New York, have invented new and useful Improvements inLocks for Window Sashes,

&o., of which the following is a specification.

This invention relates to a sash lock which is designed'to preventunauthorized opening of a sash from the exterior of the building i andalso to prevent the sash from rattling in windy weather.

It is the purpose of this invention to provide a sash lock or fastenerfor this purpose which is comparatively simple and ineXpensive inconstruction, which can be readily applied to the standard types ofwindow sashes,

as now generally constructed and in which the locking or stop member,when moved out of its operative position remains perma- `nentlyconnected with the bracket upon which it is mounted so that loss of thesame will not occur and thus'always retain the same at hand where thesame is ready for use in locking the sashes against opening.

In the accompanying drawings: Figure 1 is a fragmentary perspective viewof a pair of opposing window sashes and the adjacent part of the windowframe equipped with my improved, sash lock or fastener. Figure 2 is ahorizontal section, taken on line 24-42, Fig. 1 and showing the sashlocked in its operative position. Figure 3 is a similar view `butshowing the sash lock in its inoperative position. Figure 4 is l afragmentary vertical transverse section taken on line 4 4, Fig. 2.Figure 5 is a similar seetion'taken on line 5 5, Fig. 3. Figure 6 is avertical longitudinal section, on an enlarged scale, taken on line 6-6,F ig..2. Figure 7 is a perspective view of the holder and guide for,thelocking block showing these membersmade integrally.y Figure 8 is asimilar view ofthe stop or locking block equipped with `a guide armwhereby the same is removably supported on the.

guide-l when detached from the holder.V

Figure 9 is a perspective view showing a form of stop guide madeseparate from the holder.V

Similar characters of reference refer to like parts throughout theseveralviews.

runway 11, an upper bar 13, and an upper.

sash having an upright side bar 15 guided in the runway 12 and a lowerhorizontal'bar 16, which is arranged horizontally in line with the upperbar of the inner sash when both sashes are in their closed position, asshown in Fig. 1.

' My improved sash lock is preferably mounted on the lower end of theupright side bar 15 of the outer sash and adapted to co-operate with theadjacent part of the inner sash for preventing relative verticalmovement of these .sashes with reference to each other, so thatunauthorized entrance into the building will be prevented.

In the preferred form of this sash lock, as shown in Figs. 1-8, the samecomprises a holder which is mounted on the outer sash and a stop blockmovably mounted .on this holder and adapted to be engaged by the innersash. This holder preferably comprises a metal plate 17 secured in anupright position to the inner side of the outer sash bar 15 by means ofscrews 18 or otherwise and upper and lower hooks 19, 20 arranged TheVrelative arrangement of these parts-l is such that when the stop block21 is in its operative position on the holder the inclined face 23 onthe stop block and the upper outer edge of the inner sash will engagewith each other if anattemptis made to lower thev outer sash or 'raiselthe inner sash, thereby preventing either of these sashes from beingopened at this time.

When this stop block is moved out of en` gagement with the holder andclear of the path of the inner sash, no obstruction 1s offered to thefree downward movement of the outer sash or the upward movement of theinner sash, so that these sashesumay then be opened. e

Means are provided for conveniently stornection between the same and theholder, so

as to prevent the stop block from becoming displaced and instead retainthe same always in a position where the same is available, ready forshifting into its operative position for locking the sashes againstvertical movement relatively to each other and preventing unlawfulentrance into the building.

In the preferred construction for vaccomlishing this purpose ahorizontal bracket 24 isprovided which is connected at its inner endwith one side of the base 17 of the holder and formed integrallytherewith, this bracket being provided with a horizontal guide way 25which is T-shaped in cross section and leads to an outwardly openingnotch or recess 26 arranged at the outer end of the bracket 24. The stopblock 21 is provided on its underside with an outwardly projectingT-shaped guide arm, the enlargement 27 of which is adapted to travel inthe guideway 25 when the stop block is moved horizontally toward andfrom the holder while the reduced neck 28 of this arm is adapted toengage with the notch or recess 26 at the outer extremity ofthe bracket24 and permit the stop block 21 to be swung outwardly from a position inwhich it is arranged in the path of the inner sash to a position inwhich it is out of the path of the sash, as shown by dotted lines inFig. 1 and by full lines in Fig. 3.

of the sashes from being moved vertically lrelatively to each other. Themovement Vof this block toward the side piece ofthe win` dow frame islimited b engagement of the enlargement or head 2 of the guide arm witha shoulder 29 formed between the in.-

ner end of the guideway 25 and the base plateg17, as shown in Figs. 2and 3. The

movement of the stop b-lock away from the side piece of the frame andout of engage- Ament from the holder may be prevented by a stop devicewhich in its preferred form consists of a locking pin 30 passing throughcorresponding openings 31 formed in the upper and lower parts o-f thebracket 24 adjacent to the holder, as shown in Figs. l, 2, 4 vand 6.Upon withdrawing the pin 30 the stop block 21 may be moved. by means ofits sup-porting arm outwardly along the bracket 24 and thence swungdownward to the outer end of this bracket in which its neck 28 and thesupporting arm engages with the notch 2 6 and the locking block'arrangedQ11@ 0f the path of the Vinner sash, as shown by full lines in Fig. 3,thereby permitting either one ofthe sash to be moved vertically into amore or less open position.

In Figs. 1, 2, 3, 6 and 7, the bracket 24 is shown formedY integrallywith the holder base 17. Vhen desired this bracket may be formedseparate from the holder, for instance, as shown in Fig. 9, the bracket32 is formed on a separate attaching plate 33 which latter may besecured kin p-lacebetween the. outer sash independently of the stopblock holder, by. screws or otherwise.

In addition to locking the sashes against the. opening movementrelatively to each other, means may be associa-ted therewith forpreventing rattling of the'sashes under wind pressure when the same areclosed.`

The preferred means for accomplishing this consists of two hooks 34pivotally mounted on the upper edge of the inner sash so as to becapableof swinging into and out of engagement with the coupling pins 35Vat opposite ends and into andout of a position on opposite sides of thestop block. These two hooks are connected at their rear ends by means ofa wrist 36Vwhich is pivoted on a plate 37 secured tothe upper' edge ofthe inner sash. When both sashes are closed and the two hooks 34 are inengagement with the coupling pins 35 and stand on opposite sides of thelocking block 21, as shown in Figs. 1 and 2, the two sashes have theiropposing parts held together so'that the same are prevented fromrattling under wind pressure, and the locking block 21 is also preventedfrom being withdrawn from its holder independently of the locking pin30. Upon, however, swinging the coupling hooks 34 upwardly and inwardlyout of engagement from the coupling pins 35, as shown in Fig. 3, the twosashes areuncoupled from each otherand in the absence of the retainingpin 30 therocking block 21 may be shifted into its inoperative position,so as to. permit the sashes to be opened.

In order to permit the stop member 21 to move lengthwise of the guidewaythis stop member is provided with a notch 38 on its.` rear side 1n linewith the flanges forming the guideway 25 on the bracket 24 which `notchis adapted to receive these flanges and rattling noise of the same whensubjected to the effects of the wind.

I claim as my invention:

1. A locking'device for relatively movable ion members comp-rising aholder adapted to be mounted on one of said members, a stop removablymounted on said holder and having an inclined face adapted to be engagedby the other member for preventing relative movement of `said members,and a guide which extends laterally from said holder and upon which saidstop may be moved for carrying the same out of the path of said opposingmember, said guide having a horizontal guideway which is T-shaped incross section and said stop having a T-shaped arm which runs in saidguidevvay.

2. A locking device for relatively movable members comprising a holderadapted to be mounted on one of said members, a stop removably mountedon said holder and having an inclined face adapted to be engaged by theother member for preventing relative movement of said members, and aguide which extends laterally from said holder and upon which said stopmay bemoved for carrying the same out of the path of said opposingmember, said guide having a horizontal guide-Way which is T-shaped incross section and has its inner end arranged adjacent to said holder andits outer end arranged at a distance from said holder and provided witha rearward notch in its back, and a T-shaped arm arranged on said stopand adapted to run'in said guideway and to enter said notch forpermitting said stop to be moved out of the path of said opposing memberand to stand in a position reverse to its operative position.

3. A locking device for relatively movable members comprising a holderadapted to be mounted on one of said members, a stop removablymounted-on said holder and having an inclined face adapted to be engagedby the other member for preventing relative movement of said members,and a guide Which extends laterally from said holder and upon which saidstopI may be moved for carrying the same out of the path of saidopposing member, said guide having a horizontal guidewvay which isT-shaped in cross section and said stop having a T-shaped arm which runsin said guidevvay and said guidevvay being provided at its inner endWith a shoulder Which is adapted to be engaged by the T-shaped arm andprevent its Withdrawal from the inner end of said guide- Way.

4. A locking device for relatively movable members comprising a holderadapted to be mounted on one of said members, a stop removably mountedon said holder and having an inclined face adapted to be engaged by theother member for preventing relative movement of said members andaguidewhich extends laterally from said holder and upon Which said stopmay be moved for carrying the same out of the path of said opposingmember, said guide having `a horizontal guidevvay which is T-shaped incross section and said stop having a T-shaped arm which runs in saidguideway, and a detent removably mounted on said guideway adjacent tosaid holder for confining the stop on said holder.

5. A locking device for relatively movable members comprising a holderadapted to be mounted on one of said members, a stopI removably mountedon said holder and having an inclined face adapted to be engaged by theother member for preventing relative movement of said members, and aguide which extends laterally from said hol der and upon which said stopmay be moved for carrying the same out of the path of said opposingmember, said guide having a horizontal guide-Way which is T-shaped incross section and said stop having a T-shaped arm which runs in saidguideWay, and a detent removably mounted on said guide-Way adjacent tosaid holder for conlining the stop on said holder and consisting of anupright pin engaging With openings in the upper and lower parts of saidguideivay and extending across the path of said T-shaped arm.

6. A locking device for relatively movable members comprising a holderadapted to be mounted on one of said members, a stop removably mountedon the holder and adapted to be engaged by the other member, and meansfor coupling said holder and said last-mentioned member for preventingrattling comprising lugs arranged on the holder on opposite sides ofsaid stop, and hooks pivoted on said last-mentioned member and engagingsaid lugs.

HERMAN HOPF.

